Combined vapor and oil collection unit for attachment to a diesel engine breathing tube



FIG. 1 is a perspective view of a combined vapor and oil collection unit for attachment to a diesel engine breathing tube showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof; and

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a combined vapor and oil collection unit for attachment to a diesel engine breathing tube, as shown. 